We have renewed our company brochure. It now provides clearer information about our business activities, product information, and technologies and initiatives. Please take a look.

We exhibited at the "28th Interphex Japan Exhibition," held at Makuhari Messe from May 20 (Wednesday) to May 22 (Friday). Thank you very much for visiting our booth despite your busy schedule. 【Details of Exhibits】 ■ New Product: EX-Bioclean Diaphragm Valve ■ Renewal: Glass-Lined Diaphragm Valve ■ Products Excellent for Dead Space Solutions ■ Corrosion-Resistant Valves for Sanitary Applications ■ Sanitary Butterfly Valve for Powder and Granule Discharge *For more details, please download the catalog or contact us. (The catalog can be downloaded from the catalog page of the special website below.) *If there were any requests or questions that we could not address at the venue, please feel free to contact us.

Our company will be exhibiting at the 28th Interphex Japan, which will be held at Makuhari Messe from May 20 (Wednesday) to May 22 (Friday). This exhibition is one of the world's leading events where specialized technologies from the pharmaceutical and cosmetics industries are showcased. We will be presenting a variety of valve products that are optimal for manufacturing processes in pharmaceuticals and biotechnology, including our "Bio-Clean Diaphragm Valve" series. [Highlights of Our Exhibit] ◆ New Product: "EX-Bio Clean Diaphragm Valve" A next-generation diaphragm valve utilizing a new sealing structure! Officially launching this summer! ◆ First-ever Mini Session at this Exhibition! We will hold a mini session on the "EX-Bio Valve" that can only be heard at this exhibition. ◆ Renewed Products in Response to Many Requests! The "Glass-Lined Diaphragm Valve" has been renewed! ◆ Additionally, we will showcase various sanitary valve products that are ideal for manufacturing equipment in pharmaceuticals, cosmetics, food, and semiconductors! We sincerely look forward to your visit! For more details, please refer to the related document "Invitation to the 28th Interphex Japan (General Invitation)" below or feel free to contact us.

We have started distributing the revised version of the catalog listed below. We hope it will be useful for selecting valves in your daily operations. We would be grateful if you could gain a deeper understanding of our products. ◇ Ball Valves: In addition to the standard fire-safe type, you can choose from a wide range of options tailored to your needs, including multi-port valves and V-port valves. ■ Japanese text "No.B302-13" ◇ Butterfly Valves: We offer butterfly valves that excel in sealing performance and flow control. ■ Japanese text "No.C302-05" ◇ Sanitary Related Valves: We provide sanitary specification valves that are ideal for manufacturing equipment in pharmaceuticals, food, and semiconductors. ■ English text "No.DE117-04" *If you would like to receive a catalog, you can apply through the inquiry page. Please feel free to contact us if you have any questions or concerns. Additionally, we also have a FAQ section available, so please check it out in the related catalogs below.

Starting from July 2025, we will begin accepting orders for our new product series, the "EX-Bioclean Diaphragm Valve." This product is an evolution of the existing "Bioclean Diaphragm Valve" series designed for pharmaceutical and related facilities, featuring a new sealing structure. While maximizing the characteristics of diaphragm valves that have a "structure that does not contaminate fluids" and "excellent cleanability," we have revamped the sealing structure to better meet user needs and enhance product performance. 【Main Features】 ■ Currently available on the product page below! *For more details, please refer to the catalog or feel free to contact us.

I would like to extend my respectful New Year's greetings. I sincerely thank you for your exceptional support during the past year. I kindly ask for your continued patronage this year as well. We have resumed normal operations since January 5th. We will respond to inquiries received during the holiday period in due course. Thank you for your patience and understanding.

Thank you very much for your continued support. We sincerely apologize for the inconvenience, but our company will be closed for the year-end and New Year holidays during the following period. Closure Period: December 28, 2024 (Saturday) to January 5, 2025 (Sunday) Inquiries made through this website or via email will be addressed sequentially starting from January 6 (Monday) after the closure period. We apologize for any inconvenience this may cause and appreciate your understanding.

Dear Sir/Madam, I hope this message finds you in good health and spirits. I would like to express my sincere gratitude for your continued support. We regret to inform you that our company will be closed all day on Friday, October 24, 2025, in observance of our foundation anniversary. We apologize for any inconvenience this may cause and appreciate your understanding.

Nihon Diaball Valve Co., Ltd. will be exhibiting at "VIETWATER 2025," which will be held in Ho Chi Minh City, Vietnam, from October 22 (Wednesday) to October 24 (Friday), 2025. This exhibition is the largest water treatment-related exhibition in Vietnam, and we will showcase various valves suitable for water treatment equipment, including our representative "diaphragm valves." [Exhibition Content] ■ Diaphragm Valves - We will present various lining products with excellent corrosion and chemical resistance. - We will introduce valves optimal for individual processes such as purification equipment, sludge treatment equipment, and pure water systems. ■ Ball Valves - In addition to standard two-way valve types, we offer a series of ball valves suitable for a wide range of fields. - We will showcase various valve seats that can be used under special conditions, such as with abrasive fluids. We sincerely look forward to your visit.

We exhibited at the "INCHEM TOKYO 2025 Exhibition" held at Tokyo Big Sight from September 17 (Wednesday) to September 19 (Friday). Thank you very much for visiting our booth despite your busy schedule. 【Details of Exhibits】 ■ New Product: EX-Bio Clean Diaphragm Valve ■ Renewal: Glass Lined Diaphragm Valve ■ Ball Valve Series Suitable for a Wide Range of Fields ■ Various Lined Bodies with Excellent Corrosion and Chemical Resistance ■ PFA Lined Butterfly Valve ■ Sanitary Butterfly Valve for Powder and Granule Discharge *For more details, please download the catalog or contact us. (The catalog can be downloaded from the catalog page of the special website below.) *If there were any requests or questions that we could not address at the venue, please feel free to contact us.

Thank you very much for your continued support. We would like to inform you that our company will suspend product shipping operations for inventory purposes due to the interim financial closing on the following dates. We apologize for any inconvenience this may cause and appreciate your understanding. Shipping suspension period: Tuesday, September 30, 2025.

We have started distributing the revised version of the catalog listed below. We hope it will be useful for your daily operations in selecting valves. We would be grateful if you could gain a deeper understanding of our products. ◇ NDV Diaphragm Valves: This catalog features a variety of products including manual valves, air-operated ON-OFF valves, and electric valves. Additionally, it includes technical materials such as dimension and material selection tables at the end, which will assist in valve selection. ■ Japanese version "No.D303-12" ◇ NDV Sanitary Related Valves: This is a 'comprehensive catalog' featuring sanitary specification valves suitable for manufacturing equipment in pharmaceuticals, food, and semiconductors. We introduce a wide range of applications, including the "Bio-Clean Diaphragm Valve Series," which maximizes the features of diaphragm valves, and sanitary butterfly valves for pharmaceutical containers. ■ Japanese version "No.D117-09" *If you would like to receive a catalog, you can apply through the inquiry page. Please feel free to contact us if you have any questions or concerns. We also have a FAQ section available, so please check it out in the related catalogs below.

Our company will have a company-wide holiday during the period below. We apologize for any inconvenience this may cause and appreciate your understanding. Summer holiday period: Friday, August 15, 2025 Inquiries received during this holiday period will be addressed sequentially starting from Monday, August 18.

We exhibited at the "27th INTERPHEX JAPAN Exhibition," which was held at Tokyo Big Sight from July 9 (Wednesday) to July 11 (Friday). Thank you very much for visiting our booth despite your busy schedule. 【Details of Exhibits】 ■ New Product: EX-Bioclean Diaphragm Valve ■ Renewal: Glass-Lined Diaphragm Valve ■ Products Excellent for Dead Space Solutions ■ Corrosion-Resistant Valves with Sanitary Specifications ■ For Powder and Granule Discharge: Sanitary Butterfly Valve *For more details, please download the catalog or contact us. (The catalog can be downloaded from the catalog page of the special website below.) *If you have any requests or questions that we could not address at the venue, please feel free to contact us.

Nihon Daiya Valve Co., Ltd. will be exhibiting at 'FLOWTECH CHINA 2025' to be held at the Shanghai National Exhibition and Convention Center from June 4 (Wednesday) to June 6 (Friday), 2025. This exhibition will showcase the latest technologies and products across a wide range of areas including pumps, valves, and piping equipment. Our local subsidiary, Tianjin Daiya Valve Co., Ltd., will present various valve products, including "PFA lining valves." [Main Exhibits] ■ PFA Lining Valves: We will showcase various PFA lining valves with excellent corrosion and chemical resistance! ■ Quick-Opening Handle Type: BQL400NB: Easy operation with a 90-degree rotation, offering excellent visibility and stable sealing performance! ■ Bio-Clean Diaphragm Valves: Sanitary valves with superior "gas tightness," "cleanability," and "maintainability"! ■ V-Port Valves: Valves ideal for lines handling "abrasive fluids" and "high-viscosity fluids," featuring a V-cut ball design! We warmly invite you to visit our booth when you attend the exhibition. We look forward to seeing you!

Nihon Daiya Valve Co., Ltd. will be exhibiting at the "Shenzhen International Semiconductor Technology and Application Exhibition (SEMI-e)" held at the Shenzhen International Convention and Exhibition Center from June 26 (Wednesday) to June 28 (Friday), 2024. This exhibition is a comprehensive international showcase related to manufacturing technologies, equipment, and materials in the semiconductor industry, and we will be presenting various valve products, including "PFA lining valves," from our local subsidiary, Tianjin Daiya Valve Co., Ltd. [Exhibition Details] ■ PFA Lining Valves: We will showcase various PFA lining valves with excellent corrosion and chemical resistance! ■ Quick-Opening Handle Type: BQL400NB: Easy operation with a 90-degree rotation, offering excellent visibility and stable sealing performance! ■ Bio-Clean Diaphragm Valves: Sanitary valves with superior "air-tightness," "cleanability," and "maintainability"! ■ V-Port Valves: Valves optimal for lines handling "abrasive fluids" and "high-viscosity fluids," utilizing V-cut balls! We warmly invite you to visit our booth when you attend the exhibition. We look forward to seeing you!

In response to many requests, we have renewed our product! It features a total lining of the main flow path with glass that has excellent corrosion resistance, making it suitable for use with highly permeable chemical solutions. 【Main Features】 ■ Available on the product page below! *For more details, please refer to the PDF or feel free to contact us.

Thank you very much for your continued support. We would like to inform you that our company will suspend product shipping operations for inventory purposes due to the interim financial closing on the following date. We apologize for any inconvenience this may cause and appreciate your understanding. Shipping suspension period: Monday, March 31, 2025.

We have published the product page for the Y-shaped 3-way ball valve "Y300 type." ■ What is the NDV Y-shaped 3-way ball valve? It is a 3-way ball valve with a wide-angle body shape. It is the ideal valve for passing abrasive fluids such as powders, slurries, and high-viscosity fluids, as well as pigs for cleaning pipes. 【Main Features】 ■ Available on the product page below! *For more details, please refer to the catalog or feel free to contact us.

We have started distributing the revised version of the catalog below. We hope it will be useful for selecting valves in your daily operations. We would be grateful if you could gain a deeper understanding of our products. ◇NDV Product Guide: This is our comprehensive catalog. It introduces high-quality diaphragm valves, ball valves, and butterfly valves. ■ Bilingual "U100-40" ◇Butterfly Valves: We handle butterfly valves that excel in sealing and flow control. ■ English "No.CE302-02" *If you would like to receive a catalog, you can apply through the inquiry page. Please feel free to contact us if you have any questions or concerns. Additionally, we have a FAQ section available, so please check it out in the related catalogs below.

I would like to extend my respectful New Year's greetings. I sincerely thank you for your exceptional support during the past year. I kindly ask for your continued patronage this year as well. We have resumed regular business operations since January 6th. We will respond to inquiries received during the closure in due course. Thank you for your patience and understanding.

Thank you very much for your continued support. We sincerely apologize for the inconvenience, but our company will be closed for the year-end and New Year holidays during the following period. Holiday Period: December 28, 2024 (Saturday) to January 5, 2025 (Sunday) Inquiries made through this website or email will be addressed sequentially starting from January 6 (Monday) after the holiday period. We apologize for any inconvenience this may cause and appreciate your understanding.

We have published the product page for the V-port valve "V100 series." ■ What is the NDV V-port valve? It is a ball valve that incorporates a V-cut ball. It is an ideal valve for lines and flow regulation of abrasive fluids and high-viscosity fluids. 【Main Features】 ■ Information is available on the product page below! *For more details, please refer to the catalog or feel free to contact us.

Nihon Diaball Valve Co., Ltd. will be exhibiting at "VIETWATER 2024," which will be held in Ho Chi Minh City, Vietnam from November 6 (Wednesday) to November 8 (Friday), 2024. This exhibition is the largest water treatment-related exhibition in Vietnam, and we will showcase various valves suitable for water treatment equipment, including our representative product, the "diaphragm valve." [Exhibition Details] ■ Diaphragm Valve - We will present various lining products with excellent corrosion and chemical resistance. - We will introduce valves optimal for individual processes such as purification equipment, sludge treatment equipment, and pure water systems. ■ Ball Valve - In addition to standard two-way valve types, we offer a series of ball valves suitable for a wide range of fields. - We will showcase various valve seats that can be used under special conditions, such as with abrasive fluids. We sincerely look forward to your visit.

Dear Sir/Madam, I hope this message finds you well. I would like to express my sincere gratitude for your continued support. We regret to inform you that our company will be closed all day on Tuesday, October 1, 2024, in observance of our founding anniversary. We apologize for any inconvenience this may cause and appreciate your understanding.

We would like to express our sincere gratitude for your continued support. We would like to inform you that our product shipping operations will be suspended on the following dates due to inventory taking associated with our mid-term financial closing. We apologize for any inconvenience this may cause and appreciate your understanding. Shipping suspension period: Monday, September 30, 2024.

We have started distributing the revised version of the catalog listed below. We hope it will be helpful for you in selecting valves in your daily operations. We would be grateful if you could gain a deeper understanding of our products. ◇ Ball Valves: In addition to the standard fire-safe type, you can choose from a wide range of options tailored to your needs, including multi-port valves and V-port valves. ■ Japanese version "No.B302-12" ■ English version "No.BE302-06" ◇ Butterfly Valves: We offer butterfly valves that excel in sealing performance and flow control. ■ Japanese version "No.C302-04" ◇ Sanitary Related Valves: We provide sanitary specification valves that are ideal for manufacturing equipment in pharmaceuticals, food, and semiconductors. ■ English version "No.DE117-03" *If you would like to receive a catalog, you can apply through the inquiry page. Please feel free to contact us if you have any questions or concerns. Additionally, we also have a FAQ section available, so please check it out in the related catalogs below.

Nihon Diaball Valve Co., Ltd. will be exhibiting at the "INDO WATER 2024 Expo & Forum," which will be held in Indonesia from September 18 (Wednesday) to September 20 (Friday). This exhibition is the 18th edition and is the largest exhibition in Indonesia showcasing specialized technologies related to water supply, sewage, and recycling. We will be presenting various valves suitable for water treatment equipment, including our representative "diaphragm valves." [Exhibition Details] ■ Diaphragm Valves - We will showcase various lining products with excellent corrosion and chemical resistance. - We will introduce valves optimal for individual processes such as purification equipment, sludge treatment equipment, and pure water systems. ■ Ball Valves - In addition to standard two-way valve types, we will offer a series of ball valves suitable for a wide range of applications. - We will present various valve seats that can be used under special conditions, such as with abrasive fluids. We sincerely look forward to your visit.

We are pleased to announce the establishment of the "Product Service Support Desk" at Japan Diaball Valve. We provide reliable, safe, and high-quality after-sales service. Our employees will visit the site in person to conduct inspections and repairs while observing the conditions on-site. *Please feel free to contact us, as there may be cases where on-site inspections and repairs are difficult, such as with large-diameter valves. We will support our users through five sales bases across the country and our partner companies. For preventive maintenance and upkeep, please consult with us! 【Features of the Support Desk】 ■ Supporting the long-term maintenance and management of user equipment ■ Providing various maintenance-related services for our products based on years of accumulated unique know-how and reliable manufacturer quality ■ Accurately carrying out service operations entrusted by users based on over half a century of rich experience and solid technical skills.

Our company will have a company-wide holiday during the period below. We apologize for any inconvenience this may cause and appreciate your understanding. Summer holiday period: August 13, 2024 (Tuesday) to August 14, 2024 (Wednesday) Inquiries received during this holiday period will be addressed sequentially starting from August 15, 2024 (Thursday).